Constituents of Lepidium meyenii 'maca'. |
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| Authors: | Ilias Muhammad Jianping Zhao D Chuck Dunbar Ikhlas A Khan |
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| Institution: | National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University MS 38677, USA. milias@sunset.backbone.olemiss.edu |
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| Abstract: | The tubers of Lepidium meyenii contain the benzylated derivative of 1,2-dihydro-N-hydroxypyridine, named macaridine, together with the benzylated alkamides (macamides), N-benzyl-5-oxo-6E,8E-octadecadienamide and N-benzylhexadecanamide, as well as the acyclic keto acid, 5-oxo-6E,8E-octadecadienoic acid. The structure elucidation of the isolated compounds was based primarily on 1D and 2D NMR spectroscopic analyses, including 1H-1H COSY, 1H-13C HMQC, 1H-13C HMBC and 1H-1H NOESY experiments, as well as from 1H-15N NMR HMBC correlations for macaridine and N-benzylhexadecanamide. |
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| Keywords: | Lepidium meyenii Brassicaceae 1 2-Dihydro-N-hydroxypyridine Macaridine Macamide N-Benzyl-5-oxo-6E 8E-octadecadienamide N-Benzylhexadecanamide 5-Oxo-6E 8E-octadecadienoic acid 2D NMR 1H-15N NMR |
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